LaMnO(x)Air Diffusion Cathode for Primary Alkali Batteries

Yazici M. S.

RUSSIAN JOURNAL OF ELECTROCHEMISTRY, cilt.56, sa.8, ss.630-637, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 56 Sayı: 8
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1134/s1023193520080078
  • Dergi Adı: RUSSIAN JOURNAL OF ELECTROCHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aqualine, Chemical Abstracts Core, Chimica, Compendex, Environment Index, INSPEC
  • Sayfa Sayıları: ss.630-637
  • Anahtar Kelimeler: alkaline, air electrode, cathode, zinc-air, OXYGEN REDUCTION, ELECTRODE, OXIDE
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

Electrochemical performance of a new type of high-current air cathode is compared to off-the-shelf air electrodes (Alupower-A series; Eltech-B; Duracell-C) in 35% KOH solution. LaMnOx(LAM) is made by precipitation method resulting with sub-micron size particles. The electrode is single layer and very resistant to the KOH leakage. Approximately 65 m(2)g(-1)surface area is favorable for effective catalyst distribution and electrochemical active area utilization. LaMnO(x)type catalyst-supported electrode performs comparable or better than many of the commercial samples. Electrode shows a voltage drop of less than 200 mV at 150 mA cm(-2)current density. Electrode structure does not show any sign of mass transfer limitation up to 250 mA cm(-2).